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Chemistry of Stannylene-Based Lewis Pairs: Dynamic Tin Coordination Switching Between Donor and Acceptor Character

机译:亚锡基路易斯对的化学:供体和受体特征之间的动态锡配位转换

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摘要

The coordination chemistry of cyclic stannylene-based intramolecular Lewis pairs is presented. The PSn adducts were treated with [Ni(COD)(2)] and [Pd(PCy3)(2)] (COD=1,5-cyclooctadiene, PCy3=tricyclohexylphosphine). In the isolated coordination compounds the stannylene moiety acts either as an acceptor or a donor ligand. Examples of a dynamic switch between these two coordination modes of the PSn ligand are illustrated and the structures in the solid state together with heteronuclear NMR spectroscopic findings are discussed. In the case of a Ni-0 complex, Sn-119 Mossbauer spectroscopy of the uncoordinated and coordinated phosphastannirane ligand is presented.
机译:介绍了环亚锡基分子内路易斯对的配位化学。用[Ni(COD)(2)]和[Pd(PCy3)(2)](COD = 1,5-环辛二烯,PCy3 =三环己基膦)处理PSn加合物。在分离的配位化合物中,亚锡烷基部分充当受体或供体配体。说明了PSn配体的这两种配位模式之间动态切换的示例,并讨论了固态结构以及异核NMR光谱学发现。在Ni-0配合物的情况下,给出了未配位和配位的磷杂环丁烷配体的Sn-119 Mossbauer光谱。

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